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diff --git a/doc/check-health.md b/doc/check-health.md
index 9ee16bb..f94a0bf 100644
--- a/doc/check-health.md
+++ b/doc/check-health.md
@@ -1,7 +1,14 @@
Notify about health state
=========================
-[◀ Go back to main README](../README.md)
+[![GitHub stars](https://img.shields.io/github/stars/eworm-de/routeros-scripts?logo=GitHub&style=flat&color=red)](https://github.com/eworm-de/routeros-scripts/stargazers)
+[![GitHub forks](https://img.shields.io/github/forks/eworm-de/routeros-scripts?logo=GitHub&style=flat&color=green)](https://github.com/eworm-de/routeros-scripts/network)
+[![GitHub watchers](https://img.shields.io/github/watchers/eworm-de/routeros-scripts?logo=GitHub&style=flat&color=blue)](https://github.com/eworm-de/routeros-scripts/watchers)
+[![required RouterOS version](https://img.shields.io/badge/RouterOS-7.13-yellow?style=flat)](https://mikrotik.com/download/changelogs/)
+[![Telegram group @routeros_scripts](https://img.shields.io/badge/Telegram-%40routeros__scripts-%2326A5E4?logo=telegram&style=flat)](https://t.me/routeros_scripts)
+[![donate with PayPal](https://img.shields.io/badge/Like_it%3F-Donate!-orange?logo=githubsponsors&logoColor=orange&style=flat)](https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=A4ZXBD6YS2W8J)
+
+[⬅️ Go back to main README](../README.md)
> ℹ️ **Info**: This script can not be used on its own but requires the base
> installation. See [main README](../README.md) for details.
@@ -12,32 +19,46 @@ Description
This script is run from scheduler periodically, sending notification on
health related events:
-* voltage jumps up or down more than configured threshold or drops below limit
+* high CPU utilization
+* high RAM utilization (low available RAM)
+* voltage jumps up or down more than configured threshold
+* voltage drops below hard lower limit
* power supply failed or recovered
* temperature is above or below threshold
Note that bad initial state will not trigger an event.
-Only sensors available in hardware can be checked. See what your
-hardware supports:
+Monitoring CPU and RAM utilization (available processing and memory
+resources) works on all devices. Other than that only sensors available
+in hardware can be checked. See what your hardware supports:
/system/health/print;
### Sample notifications
+#### CPU utilization
+
+![check-health notification cpu utilization high](check-health.d/notification-01-cpu-utilization-high.avif)
+![check-health notification cpu utilization ok](check-health.d/notification-02-cpu-utilization-ok.avif)
+
+#### RAM utilization (low available RAM)
+
+![check-health notification ram utilization high](check-health.d/notification-03-ram-utilization-high.avif)
+![check-health notification ram utilization ok](check-health.d/notification-04-ram-utilization-ok.avif)
+
#### Voltage
-![check-health notification voltage](check-health.d/notification-01-voltage.svg)
+![check-health notification voltage](check-health.d/notification-05-voltage.avif)
#### Temperature
-![check-health notification](check-health.d/notification-02-temperature-high.svg)
-![check-health notification](check-health.d/notification-03-temperature-ok.svg)
+![check-health notification temperature high](check-health.d/notification-06-temperature-high.avif)
+![check-health notification temperature ok](check-health.d/notification-07-temperature-ok.avif)
#### PSU state
-![check-health notification](check-health.d/notification-04-psu-fail.svg)
-![check-health notification](check-health.d/notification-05-psu-ok.svg)
+![check-health notification psu fail](check-health.d/notification-08-psu-fail.avif)
+![check-health notification psu ok](check-health.d/notification-09-psu-ok.avif)
Requirements and installation
-----------------------------
@@ -45,7 +66,11 @@ Requirements and installation
Just install the script and create a scheduler:
$ScriptInstallUpdate check-health;
- /system/scheduler/add interval=1m name=check-health on-event="/system/script/run check-health;" start-time=startup;
+ /system/scheduler/add interval=53s name=check-health on-event="/system/script/run check-health;" start-time=startup;
+
+> ℹ️ **Info**: Running lots of scripts simultaneously can tamper the
+> precision of cpu utilization, escpecially on devices with limited
+> resources. Thus an unusual interval is used here.
Configuration
-------------
@@ -56,11 +81,16 @@ The configuration goes to `global-config-overlay`, these are the parameters:
* `CheckHealthVoltageLow`: value (in volt*10) giving a hard lower limit
* `CheckHealthVoltagePercent`: percentage value to trigger voltage jumps
+> ℹ️ **Info**: Copy relevant configuration from
+> [`global-config`](../global-config.rsc) (the one without `-overlay`) to
+> your local `global-config-overlay` and modify it to your specific needs.
+
Also notification settings are required for
[e-mail](mod/notification-email.md),
-[matrix](mod/notification-matrix.md) and/or
+[matrix](mod/notification-matrix.md),
+[ntfy](mod/notification-ntfy.md) and/or
[telegram](mod/notification-telegram.md).
---
-[◀ Go back to main README](../README.md)
-[▲ Go back to top](#top)
+[⬅️ Go back to main README](../README.md)
+[⬆️ Go back to top](#top)